HydraForce, Inc. Proportional Flow Control Vave HSPEC12-30A

DESCRIPTION A high pressure, proportional, solenoid-operated, 3-way, normally-closed, flow control, screw-in hydraulic cartridge valve intended for post-compensated applications with load-sense systems. In post- compensated systems, the load-sense port 1 of the HSPEC12-30A valve is connected to the highest load, which maintains flow sharing when flow demand exceeds flow supply. Pressure compensation value of the valve defined as pressure difference between inlet and load sense ports is provided by appropriate setup of a pump load sense control or by additional pressure compensator valve, one for the whole system, in case the pump is non-adjustable. OPERATION When de-energized, the HSPEC12-30A blocks flow from port 3 to port 2. The valve will regulate flow out of port 2 regardless of load pressure with flow rate proportional to current applied to the solenoid. FEATURES • Integral post-compensator. • Integral load-sense. • Reduced manifold space claim. • Efficient wet-armature construction. • Continuous-duty rated coils. • E-Coils rated up to IP69K. • Flow sharing possible • All HyPerformance™ valves are tested to the rigorous standards of NFPA specification T2.6.1 and are tested at a verfication level of 90% and an assurance of 99% RATINGS Operating Pressure: 350 bar (5075 psi); 10% cycle life; 420 bar (6090 psi) Note: All HyPerformance™ products are tested for 900K cycles at 350 bar and 100K at 420 bar. Proof Pressure: 690 bar (10000 psi) Burst Pressure: 1241 bar (18000 psi) Flow: 70 lpm (18.5 gpm) at 150 psi (10.3 bar) compensation value Internal Leakage: Port 3 to port 2 or port 1 to port 2: 7 drops/minute with 350 bar (5075 psi) at port 3. Temperature: -54° to 107°C (-65° to 225° F) with urethane seals